government. translator: we are the future of the country. without security a country does not exist and cannot achieve development. we are on the streets to fight against acts of banditry. reporter: the united nations estimates 60% of port-au-prince is controlled by gangs and the toll on police officers has been high. one human rights organization says at least 78 police officers have been killed. an average of four a month. since haitian prime minister henri came to power a year and a half ago. henri says he s aware there must be change but appealed for people to act calmly. translator: translator: in this difficult moment, we have to move forward. i call upon all of you to not mistake your enemies of we have to fight the ongoing insecurity. we have to unite to fight it together. reporter: the wave of killings triggering a lawsuit by the police union accusing them of failing to help police